NFS

Hi all
Trying to do RMAN from catalog database Dell Linux server RHEL to our
production Data base data registered on catalog
During RMAN remote backup on the NFS server Linux , the NFS files system
get disconnected and it cause the DB on the Production
got DB restart the NFS get disconnect.... any help would be appreciated how
should i mount the NFS file options
NFS Server: RHEL5 64bit
NFS Client : AIX5L 5.3
DB: Oracle 10g 10.0.2.3
I am using the following nfs options on the AIX box
mount -o rw,bg,intr,hard,timeo=600,wsize=32768,rsize=32768, vers=3,proto=tcp
10.5.1.33:/u01/rman /nfs
on the Linux server the NFS export look as follow
[root@linux3 ~]# cat /etc/exports
#/etc/exports
#/data/files